PLEASE read very carefully. Note if this does not work out then I'll ask the moderator to delete.

If you have had a 500X failure that has been fixed under warranty then please either:

1) Check this thread for the same and then give the specific existing post a "Thumbs Up" / "Like" (you can "Like" this header/starting post BUT PLEASE DO NOT "Like" and other posts UNLESS you have had EXACTLY the same warranty repair)

2) If you can't find same/similar then create a new post with a copy to the template below.

Failure: broken driver
Model: 500X 1.4 MultiAir
Reg. Year: 2015
Mileage: to few
Details: driver lost his head
Other: never again

Failure: Climate Control Fan Motor
Model: 500X Cross Plus 1.4 MultiAir
Reg. Year: 2015
Mileage: 11,839
Details: Very noisy / drumming
Other: Unit replaced all OK

Failure: Turbo Upper Heat Shield
Model: 500X 1.4 MultiAir
Reg. Year: 2015
Mileage: 12,510
Details: Was rattling at idle. Clinched washer on lower turbo stud location loose on shield
Other: Shield Unit replaced all OK.

Failure: Outside Temperature Sensor
Model: 500X 1.4 MultiAir
Reg. Year: 2015
Mileage: 12,840
Details: Temperature reading excessively high - 30deg to50deg when actual is 5 to 10 degrees
Other: N/S wing mirror replaced. All OK

Failure: Outside Temp Sensor
Model 500X 1.4 Multiair
Mileage 26000 miles

Reading very high temps 50 deg etc and affecting climate control on auto setting. Complete mirror assembly replaced.

Failure :Battery

Model 500X 1.4 Multiair 2015

13 months old from new

Bad cell causing non start and showing various warning lights etc.
Replaced with new one (three week wait from Italy)

Failure: 500 seat logo driver seat peeling off

Model 500x 1.4 multiair

From new complete back of seat cover replaced.

failure: engine mounts
Model: 500X 1.6 multijet
Reg. Year: 2016
Mileage: 14700
Details: harsh vibrations at idle- mounts replaced under warranty

failure: Battery going flat
Model: 500X 1.6 multijet
Reg. Year: 2017
Mileage: 14700/15000
Details: Battery kept draining
Other: Tested battery, battery ok after a charge, software updates to ecu, bcm and keyless entry. 300 miles later, still discharging, battery retested and confirmed duff. New battery under warranty

That should have been a "Like" / "Thumbs Up" to my post

Not to worry too much but if we can get everybody to read first and then "Like/Thumbs Up" to a parent issue or raise a NEW issue then hopefully we will end up with a fairly unique/distinct, non duplicated, list of issues.

This has to be a guide only where the FAULT/FAILURE is of most importance. And yes the same fault on different models may be of concern leaving you wondering if you should "Thumbs Up" or create a new entry? If in doubt create a new entry.

Maybe the Fiat Forum coders can come up with a nice little database extension to the site that can log and track model issues?.

Meanwhile I'm hoping this Thread can be a consolidated 500X "Failure/Issue" recording point for the issue and basic facts only. More detailed information etc. is best done in a separate thread.

This could turn out to be a bad idea but I am looking to find/establish a SIMPLE failure/issue list of items. First Port Of Call/Registration looking for an issue/failure you may have.

Failure: Thermostat Cover Gasket leaking

Model: 2.0 Multijet Cross Plus

Reg year: 2015

Mileage: 8000

Other: Repaired under warranty but hugely expensive for Fiat due to the amount of work to be done to get to it

Failure: Temperature Sensor in Common Rail transmitting wrong data

Model: 2.0 Multijet Cross Plus

Reg Year: 2015

Mileage: 8000

Other: Repaired under warranty at huge cost to Fiat as they didn't know what the fault was and just replaced expensive parts like the Injectors and Common Rail till something worked

Fault: Boot release 'cover' fell off

Model: 2.0 Multijet Cross Plus

Reg Year: 2015

Mileage: 12,000

Other: Part ordered then replaced under warranty whilst I waited

Fault: uConnect unit lost all DAB stations, could not be retuned

Model: 2.0 Multijet Cross Plus

Reg Year: 2015

Mileage: 15000

Other: New uConnect head unit and roof aerial replaced under warranty

Fault: Boot release housing loose

Model: 1.4 Multiair Lounge

Reg. Year: 2015

Mileage: 15000

Other: Fault was present when car was bought (used), repaired f.o.c. by supplying Fiat dealer.

Fault: Driver's exterior door handle slightly loose and jamming

Model: 1.4 Multiair Lounge

Reg. Year: 2015

Mileage: 15000

Other: Fault was present when car was bought (used), repaired f.o.c. by supplying Fiat dealer.

Failure: Non Start
Model: 500X 1.6 MJ Cross Plus
Reg. Year: 2015
Mileage: 26000
Details: Battery failure, battery changed under warranty for newer heavier duty version.
Other: N/A

Failure: General Electrical Warnings Appear at Random
Model: 500X 1.6 MJ Cross Plus
Reg. Year: 2015
Mileage: 26000
Details:Water ingress to ECU via cable routing. Routing changed and new ECU done under warranty.
Other: N/A

Failure: Battery
Model: 500X 1.6 MJ Lounge
Reg. Year: 2015
Mileage: 27000
Details: Dealer said the battery needed changing, during the yearly service, because it showed signs of failure.
Other: N/A

Failure: Anti Roll Bar Link
Model: 500X 2.0 Multijet 4X4 Auto
Reg. Year: 2016
Mileage: 21600
Details: Knocking sound from drivers side, sounded from rear but actually front needed replacing, worse when engine cold and awful going over bumps.
Other: Replaced under warranty. No noise since.